Siggly is an email signature management platform that helps organizations create, manage, and deploy consistent signatures across their teams. Designed for Google Workspace, with Microsoft 365 also supported, the service lets administrators connect a workspace, build signatures in a visual editor, and roll them out to users. A free plan is available for teams of up to five users.

Features include team and department management, directory and HR system syncing, automatic updates, brand controls, regional signature rules, legal disclaimers, and compliance blocks for industries including legal, healthcare, finance, and real estate. Teams can add campaign banners, personal links, and contact details, while analytics track clicks and engagement to help measure marketing performance. Siggly also offers AI-assisted signature design, audit logs, templates, and tools such as a free signature generator, HTML converter, and ROI calculator. The platform is intended to reduce manual updates and support work while keeping employee information and branding consistent. Its website states that the service has SOC 2 Type II status and offers secure OAuth workspace connections.